Dyestuff



cilcnccl Sepia ilfi, 1%24.

HEEE'RIGE FRIEDEllICH RAEDER All!) WALTER MIEG, '03: VGEWINKEL, GERMANY,-

iSEE-IQHURS TO FAEBENEABBIKEW VGRIiEi FRIEDR. 3&YER AI?!) '80., E LEVER- K'USiEThl. EEAR GGLOGNE-ON-THE-Efifilfi, GERMANY.

BYESTUFF.

l l'c fllz'awing. implication filed Hair 28, 1828. Serial N0. 642,162.

Tc all irhomjit may came m:

Be it known thstwe, HEINRICH FRIEDRICH Rams}: and WALTER M nn, citizcnscf Germany, residing at VchWinkcl, in the State 5 of Prussia. Germany, have invented new and useful Improvements in Dyestuffs, of which the following isa. specification.

We havc found that new and Valuable- (lyest-ufis can be cbtainccl by trcatin amin0- .iianthmqninonylamincs with sulfomting agents.

. The new dyes mic afl'cr being: dried and.

pulverized dark powders soluble in water gcneially with a violetv co blue to green colon l5 aticn. They are almost insoluble in dilute scids and dye WOOl from acid baths from violst m QICYlSll-blll t0 hluislvgreen shades fast to light.

In order to illustrate our new prcccss more fully, the following example is given, the

aris being by wc'ight:-

parts f 4.4- l-i:imin0-'l.1-diai:ihmqui- IlOll YliEilIlTH) are dissolved in 250 parts cf fuming sulfuric acid per ccnt G while stirring :mcl the resulting n'iixt i'c hcctcil up to M6 (.3. until the sull cnic mid will he pTOlflH'CWl which is soluble in Winerwith a blue cclrn'nlinn. A'ltcizcocling the melt is poured into 2000-2500 pari's 0% W21.- tcix liciicil up. lilt-ercd whilc hot and washed with a small quantify of water.

It is a dark powdci" scarcely soluble in ('Uhl, more easily solnhlc in hot water with n greenish-blue coloration. it is soluble in concentrated sulfuric acid with, a. bluishgreen and. in bailing glacial acetic acid with a pure blue coloration. It dyes wool bluishgi'ey shades fast in light and fillliiw.

The dian1in0-alpha-hcta;-dinnthmquinonylcminc gives a. blue-black (lye, the 4. l--(li- 4Q 2. The herein described new (lyc being a 55 sulfcnic acid of xl -dimminwLlsliantlnaqninonylcminc, which is-afiiei' being dried cmlpulverizecl a, dark powder being scarcely soluble in cold and mere easily sclnblc in hot which. being soluble in ccnccnti'aical sul-- furic acid with bluish gz'cen llfflljl in boiling glacial acetic acid with spurs blue coloration dyeing Wool from acid baths bluish-- green shades fast to light and to falling substantially as described. 5

In testimony whereof we have hercun'ivc set our hands.

HEINRICH misnmcn RAE-ms. WALTER Misc. 

